When a problem is researched, authoritative sources should be used because they a. include thoughtful opinions. b. are up to date. c. are easy to find. d. contain relevant information.

When a problem is researched, authoritative sources should be used because they

A] include thoughtful opinions.

B] are up to date.

C] are easy to find.

D] contain relevant information.

THE ANSWER IS B FOR EDGEN

B

Explanation:

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;